Crude glycerin in the supplement for beef cattle on pasture
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Tipo de documento: | Tese |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://hdl.handle.net/11449/123694 http://www.athena.biblioteca.unesp.br/exlibris/bd/cathedra/09-06-2015/000832669.pdf |
Resumo: | Four experiments were conducted during the dry and rainy season, in order to assess the increasing concentrations of crude glycerin (80% glycerol) in the supplement of young Nellore grazing tropical grass, on intake, digestibility, ruminal fermentation, rumen microorganism profile, performance, methane emission, and carcass and meat quality traits. The treatment consist of supplements with increasing concentrations (0, 70, 140, 210, and 280 g/kg DM basis of supplement) of crude glycerin, fed to the animals in a ratio of 700 g/ 100kg of body weight in the dry season and 300 g/100kg of body weight in the rainy season. In the dry season, fifty young Nellore bulls (279.52 ± 16.31 kg initial body weight) were used for animal performance evaluation, and ten ruminal cannulated Nellore steers (408.8 ± 38.5 kg) were used to investigate the digestibility, ruminal fermentation and rumen microorganism profile, in the two experimental phases. In the rainy season, the experiments were replicated with the same animals used in the previous phase. Inclusion of crude glycerin in the supplement of young Nellore steers grazing tropical grass in the dry season, does not affect intake and apparent total tract digestibility. However, alters rumen fermentation whereas increases butyrate and valerate while reducing acetate and total VFA, showed no negative effect on relative proportion of cellulolytic bacteria and protozoa population. Nevertheless, inclusion concentration of glycerin at up to 28% DM in the supplement of growing Nellore bulls raising tropical grass in the dry season, improved BW gain and feed efficiency. Inclusion of crude glycerin up to the level of 28% of dry matter in the supplement does not alter the carcass characteristics, the meat quality and methane emission. However, glycerin supplementation promotes additional daily gain with potential ... |
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Crude glycerin in the supplement for beef cattle on pastureBovino de corteSuplementos dieteticosGlicerinaForragemCarne - QualidadePastagensGlycerinFour experiments were conducted during the dry and rainy season, in order to assess the increasing concentrations of crude glycerin (80% glycerol) in the supplement of young Nellore grazing tropical grass, on intake, digestibility, ruminal fermentation, rumen microorganism profile, performance, methane emission, and carcass and meat quality traits. The treatment consist of supplements with increasing concentrations (0, 70, 140, 210, and 280 g/kg DM basis of supplement) of crude glycerin, fed to the animals in a ratio of 700 g/ 100kg of body weight in the dry season and 300 g/100kg of body weight in the rainy season. In the dry season, fifty young Nellore bulls (279.52 ± 16.31 kg initial body weight) were used for animal performance evaluation, and ten ruminal cannulated Nellore steers (408.8 ± 38.5 kg) were used to investigate the digestibility, ruminal fermentation and rumen microorganism profile, in the two experimental phases. In the rainy season, the experiments were replicated with the same animals used in the previous phase. Inclusion of crude glycerin in the supplement of young Nellore steers grazing tropical grass in the dry season, does not affect intake and apparent total tract digestibility. However, alters rumen fermentation whereas increases butyrate and valerate while reducing acetate and total VFA, showed no negative effect on relative proportion of cellulolytic bacteria and protozoa population. Nevertheless, inclusion concentration of glycerin at up to 28% DM in the supplement of growing Nellore bulls raising tropical grass in the dry season, improved BW gain and feed efficiency. Inclusion of crude glycerin up to the level of 28% of dry matter in the supplement does not alter the carcass characteristics, the meat quality and methane emission. However, glycerin supplementation promotes additional daily gain with potential ...Foram realizados quatro experimentos distribuídos durante a época de seca e águas, com o objetivo de avaliar a inclusão de glicerina bruta (80% de glicerol) no suplemento de bovinos Nelore criados em pastagem tropical, sobre o consumo, digestibilidade, fermentação ruminal, perfil de microrganismo no rumem, desempenho, emissões de metano, qualidade de carne e características de carcaça. Os tratamentos consistiram de suplementos com níveis crescentes (0, 70, 140, 210, e 280 g/kg MS do suplemento) de glicerina bruta, fornecidos aos animais em uma relação de 700 g/100kg de peso corporal da época da seca, e 300 g/100kg de peso corporal durante a época das águas. Na estação da seca, cinquenta tourinhos Nelore (279.52 ± 16.31 kg peso corporal inicial) foram usados para avaliação de performance animal, e dez novilhos Nelore canulados (408.8 ± 38.5 kg) foram usados para investigar a digestibilidade, fermentação ruminal e perfil de microrganismos do rumem. Na estação das águas, os experimentos foram repetidos com os mesmos animais utilizados na fase anterior. Inclusão de glicerina bruta no suplemento de bovinos Nelore castrados, criados a pasto na época da seca, não afeta o consumo e digestibilidade aparente. No entanto, altera a fermentação ruminal, aumentando a proporção de butirato e valerato enquanto reduz acetato e ácidos graxos voláteis totais, sem apresentar efeito negativo sobre a população relativa de bactéria celulolíticas e protozoários no rúmen. Contudo, a inclusão de glicerina até o nível de 28% da matéria seca do suplemento de tourinhos Nelore em crescimento criados em pastagens tropicais na época da seca, melhora o ganho de peso e a eficiência alimentar. A inclusão de glicerina bruta até a concentração de 28% da matéria seca do suplemento não altera consumo, as características de carcaça e qualidade de carne, e emissão de metano. No entanto, promove ...Universidade Estadual Paulista (Unesp)Berchielli, Telma Teresinha [UNESP]Universidade Estadual Paulista (Unesp)San Vito, Elias [UNESP]2015-06-17T19:33:40Z2015-06-17T19:33:40Z2015-02-05info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisiii, 99 p.application/pdfSAN VITO, Elias. Crude glycerin in the supplement for beef cattle on pasture. 2015. iii, 99 p. Tese (doutorado) - Universidade Estadual Paulista Júlio de Mesquita Filho, Faculdade de Ciências Agrárias e Veterinárias, 2015.http://hdl.handle.net/11449/123694000832669http://www.athena.biblioteca.unesp.br/exlibris/bd/cathedra/09-06-2015/000832669.pdf33004102002P05317385915649516Alephreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPenginfo:eu-repo/semantics/openAccess2024-06-05T18:57:47Zoai:repositorio.unesp.br:11449/123694Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T22:30:10.448185Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Crude glycerin in the supplement for beef cattle on pasture |
title |
Crude glycerin in the supplement for beef cattle on pasture |
spellingShingle |
Crude glycerin in the supplement for beef cattle on pasture San Vito, Elias [UNESP] Bovino de corte Suplementos dieteticos Glicerina Forragem Carne - Qualidade Pastagens Glycerin |
title_short |
Crude glycerin in the supplement for beef cattle on pasture |
title_full |
Crude glycerin in the supplement for beef cattle on pasture |
title_fullStr |
Crude glycerin in the supplement for beef cattle on pasture |
title_full_unstemmed |
Crude glycerin in the supplement for beef cattle on pasture |
title_sort |
Crude glycerin in the supplement for beef cattle on pasture |
author |
San Vito, Elias [UNESP] |
author_facet |
San Vito, Elias [UNESP] |
author_role |
author |
dc.contributor.none.fl_str_mv |
Berchielli, Telma Teresinha [UNESP] Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
San Vito, Elias [UNESP] |
dc.subject.por.fl_str_mv |
Bovino de corte Suplementos dieteticos Glicerina Forragem Carne - Qualidade Pastagens Glycerin |
topic |
Bovino de corte Suplementos dieteticos Glicerina Forragem Carne - Qualidade Pastagens Glycerin |
description |
Four experiments were conducted during the dry and rainy season, in order to assess the increasing concentrations of crude glycerin (80% glycerol) in the supplement of young Nellore grazing tropical grass, on intake, digestibility, ruminal fermentation, rumen microorganism profile, performance, methane emission, and carcass and meat quality traits. The treatment consist of supplements with increasing concentrations (0, 70, 140, 210, and 280 g/kg DM basis of supplement) of crude glycerin, fed to the animals in a ratio of 700 g/ 100kg of body weight in the dry season and 300 g/100kg of body weight in the rainy season. In the dry season, fifty young Nellore bulls (279.52 ± 16.31 kg initial body weight) were used for animal performance evaluation, and ten ruminal cannulated Nellore steers (408.8 ± 38.5 kg) were used to investigate the digestibility, ruminal fermentation and rumen microorganism profile, in the two experimental phases. In the rainy season, the experiments were replicated with the same animals used in the previous phase. Inclusion of crude glycerin in the supplement of young Nellore steers grazing tropical grass in the dry season, does not affect intake and apparent total tract digestibility. However, alters rumen fermentation whereas increases butyrate and valerate while reducing acetate and total VFA, showed no negative effect on relative proportion of cellulolytic bacteria and protozoa population. Nevertheless, inclusion concentration of glycerin at up to 28% DM in the supplement of growing Nellore bulls raising tropical grass in the dry season, improved BW gain and feed efficiency. Inclusion of crude glycerin up to the level of 28% of dry matter in the supplement does not alter the carcass characteristics, the meat quality and methane emission. However, glycerin supplementation promotes additional daily gain with potential ... |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-06-17T19:33:40Z 2015-06-17T19:33:40Z 2015-02-05 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/doctoralThesis |
format |
doctoralThesis |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
SAN VITO, Elias. Crude glycerin in the supplement for beef cattle on pasture. 2015. iii, 99 p. Tese (doutorado) - Universidade Estadual Paulista Júlio de Mesquita Filho, Faculdade de Ciências Agrárias e Veterinárias, 2015. http://hdl.handle.net/11449/123694 000832669 http://www.athena.biblioteca.unesp.br/exlibris/bd/cathedra/09-06-2015/000832669.pdf 33004102002P0 5317385915649516 |
identifier_str_mv |
SAN VITO, Elias. Crude glycerin in the supplement for beef cattle on pasture. 2015. iii, 99 p. Tese (doutorado) - Universidade Estadual Paulista Júlio de Mesquita Filho, Faculdade de Ciências Agrárias e Veterinárias, 2015. 000832669 33004102002P0 5317385915649516 |
url |
http://hdl.handle.net/11449/123694 http://www.athena.biblioteca.unesp.br/exlibris/bd/cathedra/09-06-2015/000832669.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
iii, 99 p. application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
publisher.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.source.none.fl_str_mv |
Aleph reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129432307630080 |